/* 初始化样式 */
* {
  margin: 0;
  padding: 0;
}
/* 设置页面样式 */
body {
  font-size: 15px;
  font-family: 黑体;
  background: url(images/bg.gif) no-repeat center top;
  /* center top 调整图片的位置 居中靠近顶部 */
}
/* 页面总样式 */
.wrapper {
  width: 1000px; /*设置版心宽度*/
  margin: 0 auto; /*居中*/
  /*background: url(images/bg.gif) no-repeat;
    font-size: 15px;*/
  /* font-family: 黑体; */
}
.header {
  padding-bottom: 15px;
  margin-top: 10px;
  overflow: hidden;
  background: url(images/main_line.jpg) repeat-x left bottom;
}
.main_menu {
  background: url(images\\main_menu_bg.gif) repeat-x;
}
/* li{ 设置公共样式减少代码量
    list-style-type: none;
}
a{
    text-decoration: none;
    color: black;
} */
.main_menu ul {
  list-style-type: none;
  overflow: hidden;
  margin-left: 40px;
}
.main_menu li {
  float: left;
  padding: 10px 25px;
  border-right: 1px solid white;
}
.main_menu li:last-child {
  /*消除最后一个分割线*/
  border: none;
}
.main_menu a {
  text-decoration: none;
  font-weight: bold;
  color: aliceblue;
}
.second_menu ul {
  list-style-type: none;
  overflow: hidden;
  padding-left: 10px;
}
.second_menu li {
  float: left;
  padding: 5px 13px;
  font-size: 12px;
  /* color: #888;颜色必需设置在a标签内 否则a标签本身的颜色会覆盖该颜色 */
  border-right: 1px solid gray;
}
.second_menu li:last-child {
  border: none;
}
.second_menu a {
  text-decoration: none;
  color: #888;
}
a:hover {
  color: rgb(0, 255, 255);
}
/* .main_line{
    width: 1000px;
    background-image: url(images/main_line.jpg);
    background-repeat: repeat-x; 
}*/
.center {
  overflow: hidden;
}
.left {
  float: left;
  width: 250px;
  border: 1px solid gray;
  border-top: none;
}
.left ul {
  list-style-type: none;
  overflow: hidden;
}
.left li {
  height: 20px;
  background-image: url(images/directory_bg_big.gif);
  padding: 10px 0 0 45px;
}
.left a {
  text-decoration: none;
  color: black;
}
.right {
  float: right;
  width: 720px;
  border: 1px solid gray;
  margin-bottom: 10px;
}
.right .title {
  background-image: url(images/content_bg.jpg);
}
.content {
  padding: 20px 0 10px 20px;
}
p {
  line-height: 1.5em; /*行高*/
  margin: 10px 0; /*段与段之间的间距*/
}
h3 {
  padding: 5px 0 5px 40px;
}
h4 {
  margin: 25px 0 10px 0;
}
.footer {
  background: url(images/bottom_bg.gif) repeat-x;
}
.footer ul {
  list-style-type: none;
  /* overflow: hidden;
  padding: 0 200px; */
  text-align: center;
}
.footer li {
  /* float: left; */
  display: inline-block;/*变为行级标签居中  代替浮动*/
  padding: 5px;
  border-right: 1px solid gray;
}
.footer li:last-child {
  border-right: none;
}
.footer a {
  text-decoration: none;
  font-size: 10px;
  color: aliceblue;
}
